Cilindrs Polini 75cc (d=47mm) Vespa 50cc V50 / PK / XL

Polini ir viens no lielākajiem 50 cm3 motorolleru tūninga autoražotājiem, kā arī viens no vadošajiem moderno un vēsturisko Vespa tūninga daļu ražotājiem. Cilindri, ieplūdes kolektori, izpūtēji, gaisa filtri, karburatori, kloķvārpstas un daudz kas cits - viss, kas nepieciešams, lai palielinātu jūsu klasiskās Vespa veiktspēju.

Polini Cylinder Kit 75cc (d=47mm) Vespa 50cc V50 / PK / XL, cast iron sports cylinder with 47mm bore by Polini.

This 47mm diameter cylinder will raise displacement to a total of 75cc while allowing to retain the original crankshaft, and increased displacement leads to higher top speed. Port timings are designed for racing, with an impressive boost in torque throughout the entire rpm range.

The cylinder has 6 transfer ports, a large exhaust port and a 2-ring piston with low-friction coating. Cooling properties are excellent, so this cylinder allows for intense use. Optimum RPM range is approximately 7,700rpm. 7.5hp can be easily achieved.

And, made by Polini, everything is manufactured according to very high quality standards.

• cylinder, cylinder head, piston, gaskets
• cast iron cylinder, aluminium head
• 75cc displacement
• long thread spark plug